1: # The LearningOnline Network with CAPA
2: # displays the blocking status table
3: #
4: # $Id: lonblockingstatus.pm,v 1.19 2021/01/02 21:07:36 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: #
29: package Apache::lonblockingstatus;
30:
31: use strict;
32: use Apache::Constants qw(:common);
33: use Apache::loncommon();
34: use Apache::lonnet;
35: use Apache::lonlocal;
36: use LONCAPA qw(:DEFAULT :match);
37:
38: sub handler {
39: my $r = shift;
40: &Apache::loncommon::no_cache($r);
41: &Apache::loncommon::content_type($r,'text/html');
42:
43: $r->send_http_header;
44: return OK if $r->header_only;
45:
46: my (%activities,$activity,$origurl,$origsymb);
47: map { $activities{$_} = 1; } ('boards','chat','com','blogs','about','groups','port','printout','docs','grades','passwd','search');
48:
49: # determine what kind of blocking we want details for
50: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['activity','url','symb']);
51: $activity = $env{'form.activity'};
52:
53: my $title = 'Communication Blocking Status Information';
54:
55: if (($activity eq 'docs') || ($activity eq 'printout') ||
56: ($activity eq 'grades') || ($activity eq 'passwd') ||
57: ($activity eq 'search')) {
58: $title = 'Blocking Status Information';
59: if ($activity eq 'docs') {
60: $origurl = $env{'form.url'};
61: $origsymb = $env{'form.symb'};
62: }
63: }
64: $r->print(&Apache::loncommon::start_page($title,undef,
65: {'only_body' => 1}));
66:
67: if (($activity eq '') || (!$activities{$activity})) {
68: $r->print('<p class="LC_error">'.&mt('Error: unknown activity type blocked').'</p>');
69: } elsif (($activity eq 'docs') && ($origurl eq '') && ($origsymb eq '')) {
70: $r->print('<p class="LC_error">'.&mt('Error: could not determine what content was blocked from access').'</p>');
71: } else {
72: $r->print(&blockpage($activity,$origurl,$origsymb));
73: }
74:
75: $r->print(&Apache::loncommon::end_page());
76:
77: return OK;
78: }
79:
80: sub blockpage {
81: my ($activity,$origurl,$origsymb) = @_;
82:
83: # in case of a portfolio block we need to determine the owner of the files
84: # we're trying to look at. This information is passed via query string.
85: my ($uname, $udom);
86:
87: if (($activity eq 'port') || ($activity eq 'about') ||
88: (($activity eq 'passwd') && ($env{'user.name'} eq 'public') && ($env{'user.domain'} eq 'public'))) {
89: &Apache::loncommon::get_unprocessed_cgi(
90: $ENV{'QUERY_STRING'}, ['udom', 'uname'] );
91:
92: ($uname, $udom) = ($env{'form.uname'}, $env{'form.udom'});
93: if (($uname !~ /^$match_username$/) || ($udom !~ /^$match_domain$/)) {
94: if ($activity eq 'port') {
95: return '<span class="LC_error">'.
96: &mt('Information about the owner of the portfolio files you were trying to view was missing or invalid.').
97: '</span><br />'.
98: &mt('Without valid owner information, the reason why access is blocked can not be determined');
99: } elsif ($activity eq 'about') {
100: return '<span class="LC_error">'.
101: &mt('The username and/or domain for the User Information page you were trying to view was missing or invalid.').
102: '</span><br />'.
103: &mt('Without valid information, the reason why access is blocked can not be determined');
104: } else {
105: return '<span class="LC_error">'.
106: &mt('Information about the username and/or domain for which you were trying to reset a password was missing or invalid.').
107: '</span><br />'.
108: &mt('Without valid information, the reason why access is blocked can not be determined');
109: }
110: }
111: }
112:
113: # retrieve start/end of possible active blocking
114: my (%setters,$startblock,$endblock,$triggerblock);
115:
116: if ($activity eq 'docs') {
117: my ($cdom,$cnum);
118: if ($env{'request.course.id'}) {
119: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
120: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
121: }
122: my $cancheck;
123: if (($cdom ne '') && ($cnum ne '')) {
124: if ($origsymb =~ m{^uploaded/($match_domain)/($match_courseid)/}) {
125: my ($crsdom,$crsnum) = ($1,$2);
126: if (($cdom eq $crsdom) && ($cnum eq $crsnum)) {
127: $cancheck = 1;
128: }
129: } else {
130: $cancheck = 1;
131: }
132: }
133: if ($cancheck) {
134: ($startblock,$endblock,$triggerblock) =
135: &Apache::loncommon::blockcheck(\%setters,$activity,$cnum,$cdom,$origurl,1,$origsymb,'blockingstatus');
136: } else {
137: return '<p class="LC_info">'.&mt('Could not determine why access is blocked.').'</p>';
138: }
139: } else {
140: ($startblock,$endblock,$triggerblock) =
141: &Apache::loncommon::blockcheck(\%setters,$activity,$uname,$udom,$origurl,undef,$origsymb,'blockingstatus');
142: }
143:
144: # nothing to do if there's no active blocking
145: unless ($startblock && $endblock) {
146: if ($activity eq 'docs') {
147: return '<p class="LC_info">'.&mt('Content no longer blocked from access').'</p>';
148: }
149: return '<p class="LC_info">'.&mt('Access no longer blocked for this activity').'</p>';
150: }
151:
152: # lookup $activity -> description
153: #possible activity #corresponding description
154: my %descs = (
155: boards => 'Discussion posts in this course',
156: chat => 'Chat Room',
157: com => 'This message',
158: blogs => 'Blogs',
159: about => 'User information pages',
160: groups => 'Groups in this course',
161: printout => 'Printout generation',
162: docs => 'Course Content',
163: passwd => 'Changing of passwords',
164: grades => 'Course Gradebook',
165: search => 'Content Search',
166: );
167:
168: if ($activity eq 'groups' || $activity eq 'boards') {
169: if (&Apache::loncommon::course_type() eq 'Community') {
170: $descs{'boards'} = 'Discussion posts in this community';
171: $descs{'groups'} = 'Groups in this community';
172: $descs{'docs'} = 'Community Content';
173: $descs{'grades'} = 'Community Gradebook';
174: }
175: }
176:
177: my $description = $descs{$activity};
178: if ($activity eq 'port') {
179: $description = &get_portfolio_category($uname,$udom,\%setters);
180: }
181: if ($description eq '') {
182: $description = 'Communication';
183: }
184:
185: my $showstart = Apache::lonlocal::locallocaltime($startblock);
186: my $showend = Apache::lonlocal::locallocaltime($endblock);
187:
188: my $output;
189:
190: if ( ref($description) ne 'ARRAY' ) {
191: #default: $description is one of the above descriptions
192: if ($activity eq 'docs') {
193: $output=&mt( 'Access to the content page you are attempting to'
194: . ' view will be unavailable between [_1] and [_2] because'
195: . ' access to selected '.$description.' is being blocked.'
196: ,$showstart, $showend);
197: } elsif (($activity eq 'printout') || ($activity eq 'passwd') ||
198: ($activity eq 'grades') || ($activity eq 'search') ||
199: ($activity eq 'about')) {
200: $output = mt( $description
201: . ' will be unavailable between [_1] and [_2] because'
202: . ' this functionality is being blocked.'
203: ,$showstart, $showend);
204: } else {
205: $output = mt( $description
206: . ' will be inaccessible between [_1] and [_2] because'
207: . ' communication is being blocked.'
208: ,$showstart, $showend);
209: }
210: } else {
211: # @$description is is the array returned from get_portfolio_category()
212: # and contains the description (e.g. "Portfolio files belonging to [_1]"
213: # and the value for [_1]
214: $output = mt( $$description[0]
215: . ' will be inaccessible between [_2] and [_3] because'
216: . ' communication is being blocked.'
217: ,$$description[1], $showstart, $showend);
218: }
219:
220: $output = "<p class=\"LC_info\">$output</p>";
221:
222: # show a table containing details, except if user is trying to look
223: # at a different user's portfolio files
224: if ( $activity ne 'port' # no portfolio
225: || ( $uname eq $env{'user.name'} # or own portfolio
226: && $udom eq $env{'user.domain'} )
227: || Apache::lonnet::is_course($udom, $uname) ) # or portfolio of a course
228: {
229: $output .= &build_block_table(\%setters);
230: }
231:
232: return $output;
233: }
234:
235: sub build_block_table {
236: my ($setters) = @_;
237: my %lt = &Apache::lonlocal::texthash(
238: 'cacb' => 'Currently active communication/content blocks',
239: 'cour' => 'Course',
240: 'dura' => 'Duration',
241: 'blse' => 'Block set by'
242: );
243: my $output;
244: $output = Apache::loncommon::start_data_table()
245: . Apache::loncommon::data_table_caption($lt{'cacb'})
246: . Apache::loncommon::start_data_table_header_row()
247: . "<th>$lt{'cour'}</th> <th>$lt{'dura'}</th> <th>$lt{'blse'}</th>"
248: . Apache::loncommon::end_data_table_header_row();
249:
250: foreach my $course (keys(%{$setters})) {
251: my %courseinfo=&Apache::lonnet::coursedescription($course);
252: for (my $i=0; $i<@{$$setters{$course}{staff}}; $i++) {
253: my ($uname,$udom) = @{$$setters{$course}{staff}[$i]};
254: my $fullname = Apache::loncommon::plainname($uname,$udom);
255: if (defined($env{'user.name'}) && defined($env{'user.domain'})
256: && $env{'user.name'} ne 'public'
257: && $env{'user.domain'} ne 'public')
258: {
259: $fullname = Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
260: }
261: my $triggertype = $$setters{$course}{triggers}[$i];
262: if ($triggertype) {
263: $fullname .= &mt(' (triggered by you when starting timer)');
264: }
265: my ($openblock,$closeblock) = @{$$setters{$course}{times}[$i]};
266: $openblock = &Apache::lonlocal::locallocaltime($openblock);
267: $closeblock= &Apache::lonlocal::locallocaltime($closeblock);
268: my $duration = mt('[_1] to [_2]', $openblock, $closeblock);
269: $output .= Apache::loncommon::start_data_table_row()
270: . "<td>$courseinfo{'description'}</td>"
271: . "<td>$duration</td>"
272: . "<td>$fullname</td>"
273: . Apache::loncommon::end_data_table_row();
274: }
275: }
276: $output .= Apache::loncommon::end_data_table();
277: }
278:
279: sub get_portfolio_category {
280: my ($uname, $udom, $setters) = @_;
281:
282: if ($uname eq $env{'user.name'} && $udom eq $env{'user.domain'}) {
283: # user's portolfio files
284:
285: return 'Your portfolio files';
286:
287: } elsif (Apache::lonnet::is_course($udom, $uname)) {
288: # group portfolio files
289:
290: my $coursedesc;
291:
292: foreach my $course (keys(%{$setters})) {
293: my %courseinfo = Apache::lonnet::coursedescription($course);
294: $coursedesc = $courseinfo{'description'};
295: }
296:
297: return ["Group portfolio in the course '[_1]'", $coursedesc];
298:
299: } else {
300: # different user's portfolio files
301:
302: my $plainname = Apache::loncommon::plainname($uname, $udom);
303:
304: unless ( $env{'user.name'} eq 'public'
305: && $env{'user.domain'} eq 'public' )
306: {
307: $plainname = Apache::loncommon::aboutmewrapper(
308: $plainname, $uname, $udom);
309: }
310:
311: return ['Portfolio files belonging to [_1]', $plainname];
312: }
313: }
314:
315: 1;
316: __END__
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